baber/WOPTO huggingface dataset:
Patent GB-749728-A (GB)
Title: Method and apparatus for producing flexible, helically grooved, fluid-tight, tubes and cable armourings
IPC: B21C37/12
Filed: 1953-12-01
Abstract: 749,728. Cables. A. B. C. ANSTALT. Dec. 1, 1953 [Dec, 2, 1952], No. 33353/53. Class 36. [Also in Groups V, XXII and XXVIII] Flexible helically-grooved fluid-tight cable armourings are produced by forming a smooth fluid-tight cable sheath, helically winding it with strip, helically grooving the thus-armoured cable sheath and then compressing the resultant grooves axially. A smooth cable sheath is formed on a rotating mandrel 3 by:-(a) helically winding a strip thereon and welding the abutting edges, or (b) by folding a strip 17 longitudinally thereover and welding the longitudinal seam, or (c) by extruding jacket material in liquid or semi-liquid form thereover. The sheath, thus formed, is fed forward by rollers 7 and is armoured by helically winding it with strips 9, of, for example, iron or steel; copper, aluminium or lead. Helical grooves are then formed in the armoured sheath between a threaded portion. 8<SP>1</SP> of the mandrel 3 and a concentric nut 8 rotated at the same speed. The grooving means serve also to draw the armoured sheath off the mandrel and feed it through a device 11 which hinders the feed to compress the grooves axially. A cable 14 is supplied through the mandrel 3 and compression of the grooves, serves to press the sheath on to the cable.
Patent GB-172659-A (GB)
Title: Improvements in and relating to hypodermic syringes, especially for medical purposes
IPC: A61M5/31
Filed: 1921-12-12
Abstract: 172,659. Waswasof, A. Dec. 12, 1921. Syringes.-An hypodermic syringe has a barrel with ends 2, 3 into which a plunger 1 slidingly fits and a part 4 enlarged to form a reservoir from which liquid is admitted to the end 3 on withdrawal of the plunger. The stroke of the plunger can be limited by a stop (not shown) placed within the end 3 or by a splitbush (not 'shown) held on the end 2 to contact with a collar 12 on the plunger. A lower cap 6 contains needles 8 removably held by projections 9 and shaped to fit the nozzle of the end 3. In a modification, the reservoir is arranged eccentric to the plunger, and a separate sliding sleeve positioned on the plunger, allow the barrel to be filled either from the reservoir or from an external vessel.
Patent GB-461453-A (GB)
Title: Apparatus for supplying hydraulic energy for any use and having an automatic clutch
IPC: F04B49/02
Filed: 1935-12-02
Abstract: 461,453. Fluid-pressure servomotorcontrol apparatus. BOYSSON, J. B. A. DE. Dec. 2, 1935, Nos. 33413 and 33414. Convention dates, Dec. 1, 1934 and March 13, 1935. [Class 135] [Also in Group XXVIII] A pump is driven through a clutch which is automatically disengaged when the discharge pressure rises above a predetermined amount. A revolving cylinder pump 2, Fig. 1, has pistons 3 engaging an eccentric ring 5 mountedin roller bearings in the casing 6. The cylinder body 2 revolves on a fixed valve 1, a central passage 25 in which communicates with a piston 16 engaging the clutch 11. Communication between the passage 25 and the discharge and suction passages is controlled by a valve 18, which is normally pressed by a spring 20 against a seating 21, the passage 25 thus communicating with the suction passage 26. If the discharge pressure rises unduly, valve 18 is depressed against a seating 24, and discharge pressure is admitted to the piston 16, which disengages the clutch. In a modification, Fig. 5, the clutch is adapted to be disengaged also if the discharge pressure falls unduly. The clutch is operated by levers 29 connected to a cross-head 30, which is attached to a rod 31 having a head 32 acted on by a spring 33 in the interior of a piston 34. An annular surface 36 on the piston 34 is exposed to the discharge pressure through passages 38, 37 and prevents disengagement of the clutch by a spring 39, unless the discharge pressure falls unduly. If the discharge pressure rises unduly a valve 43 is depressed, thus admitting pressure to the back of the annular portion 36 and permitting the spring 39 to disengage the clutch. Specifications 18490/02 and 1099/08, [both in Class 8], are referred to.
Patent GB-466849-A (GB)
Title: Improved process for lead plating metals
IPC: C23C2/10
Filed: 1935-12-03
Abstract: To produce a lead coating free from pin holes on metal, e.g iron or steel, the metal is cleaned either in an acid bath or in a bath of caustic alkali and then in an acid bath, and is then freed from acid by immersion in a neutralizing bath which has a soda base, but is not caustic soda, e.g. a bath of bicarbonate of soda, passed through a cold or cool solution of zinc chloride, the strength of which does not exceed 90 DEG  Twaddell and the temperature of which does not exceed 70 DEG  F., and passed into a bath of molten lead through a flux consisting of ammonium chloride and glycerine.
Patent GB-931797-A (GB)
Title: Digital electrical meter
Inventor: AIREY LESLIE
IPC: H03M1/00
Filed: 1958-10-21
Abstract: 931,797. Electric selective signalling systems. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Jan. 15, 1960 [Oct. 21, 1958], No. 33597/58. Class 40 (1). In a digital electric meter which includes a digital scale and means responsive to the more significant digits to apply a backing-off voltage, the scale includes a central portion sufficient to accommodate a full-scale deflection in response to maximum input, and extra portions at each end to provide for undershoot and overshoot when an incorrect backing-off voltage is applied. Fig. 2 shows a preferred form of scale the centre portion of which comprises six equal divisions e ... j, leaving el and j<1> for undershoot and overshoot respectively. The voltage to be measured, which may represent a temperature, for example, is applied to input terminals VA, Fig. 4, and, via series resistors r1, r3 to a galvanometer G which has a coded eight-track scale adapted to be sensed photo-electrically. The three most significant tracks, equivalent to Fig. 2, control the supply of backing-off voltage from a source VB by means of three relays R1, R2, R3. A switch SR is closed to increase the sensitivity of the instrument.
Patent GB-1174436-A (GB)
Title: Improvements in or relating to Electric Circuit Arrangements including an Inverter.
IPC: H02M7/53854
Filed: 1967-07-21
Abstract: 1,174,436. Inverting. SIEMENS A.G. 21 July, 1967 [22 July, 1966], No. 33603/67. Heading H2F. [Also in Division H3] In a self-oscillating inverter circuit synchronization is provided by and at a frequency which is equal to or a whole number multiple of a periodic voltage derived from a load which the inverter is supplying and the basic frequency of the periodic voltage is determined in the load circuit and is independent of the frequency of the alternating current supplied by the inverter. As shown a push pull selfoscillating transistor inverter supplies square wave and direct current via diodes G1 to a load V which is pulse controlled. Starting is ensured by divider R1, R2 and a periodic voltage at the basic frequency of the load is tapped off from the load circuit and may be amplified at V8 for supply to a transformer Tr2. This transformer supplies the synchronizing pulses to the base electrodes of the transistors Ts1 and T82 so as to modify their conduction provided by the winding W2. The natural frequency of operation of the inverter may be lower than equal to or a multiple of the frequency of the periodic synchronizing pulses derived from the load. The synchronizing pulses from the load circuit may be ohmically or capacitively connected to the inverter circuit. Thyristors can be used in place of the transistors and the circuit may be used to supply the heaters of valves.
Patent GB-1405824-A (GB)
Title: Trolley for overhead conveyor system
IPC: B66C7/00
Filed: 1973-07-16
Abstract: 1405824 Trolley for overhead conveyer; current collection R STAHL AUFZUGE GmbH 16 July 1973 [25 July 1972] 33690/73 Heading B7L A trolley for a suspended conveyer system including a conductor rail 29 for electrical supply to contacts 13 on the trolley, comprises an electric motor 9 to drive a drive wheel 3 which is carried by frame means formed by a yoke 1, a carrier plate 16 detachably attached to the yoke at 17, 18 and carrying the contacts 13 and a control unit 14 for controlling current supply to the motor 9, and a pluggable connection device 21 for electrically connecting the conducting elements to electrical components (such as the motor 9, as shown) carried by the yoke 1. A switch lever 22 to mechanically sense contact with other trolleys or other obstructions in the path of the trolley is pivotally carried by the front end of a load carrying beam 11 suspended from the illustrated wheeled unit of the trolley and another generally similar wheeled unit having no motor thereon. Lever 22 is detachably connected by a Bowden cable 23 to a limit switch 25 in the control unit 14 so that the motor 9 stops when the lever is deflected. Carrier plate also carries guide wheels 15 for lateral guidance of the trolley. In another form Figs. 4-6 (not shown), the motor (105) is carried by the carrier plate (112) and coupled to the drive wheel (102) by an endless belt (106) which is held in tension by a spring (119). The carrier plate has a dove-tailed slide mount (111) for its detachable mounting on the yoke (101). The load carrying beam (107) suspended beneath the wheeled units carries a resilient current-conducting strip (108) at its front end to detect contact with obstructions, the strip being connected to electrical switch means (109, 110) which communicate with the motor control unit (117) via the pluggable electrical connection device (122, 123).
Patent GB-789480-A (GB)
Title: Improvements relating to universal joints
IPC: F16D3/41
Filed: 1955-11-24
Abstract: 789,480. Universal joints. DAIMLERBENZ AKT.-GES. Nov. 24, 1955 [Dec. 14, 1954], No. 33728/55. Class 80 (2). [Also in Group XXXIV] In a Hooke's joint each pivot pin 4 on the interconnecting star is mounted in needle bearings in a bush 6 which is secured in a hole in the respective fork 1 or 2 by a bayonet connection provided by a pair of lugs 9 on the bush engaging grooves in the fork. Each bush is closed at one end and has an undercut square portion 13 engaged by a plate 15 bolted on to the fork 1 or 2 to lock the bayonet connection. The square portion 13 allows the bush to be turned by a spanner.
Patent GB-792581-A (GB)
Title: Microcrystalline wax compositions
IPC: C08K5/01
Filed: 1955-11-24
Abstract: A wax composition comprises a major proportion of a microcrystalline wax and a minor proportion of a substantially saturated polycyclic hydrocarbon having 3 or 4 fused rings or a mixture of substantially saturated polycyclic hydrocarbons having an average of 3 to 4 fused rings.  The substantially saturated hydrocarbons are saturated hydrocarbons or hydrocarbons having one double bond.  Hydrocarbons specified are tricyclooctanes, tricyclononane, hydrogenated indacenes, hydrogenated benzindenes, hydrogenated acenaphthylenes, hydrogenated anthracenes, hydrogenated phenanthrenes, hydrogenated benzonaphthenes, tricyclodecane, tricyclodocosane, hydrogenated trindans, hydrogenated cyclopentafluorenes, hydrogenated 3,4-phenyleneindenes, hydrogenated dicyclopentanaphthalenes, hydrogenated retenes, hydrogenated pyracenes, hydrogenated isonaphthofluorenes, hydrogenated a -anthrindans, hydrogenated aceanthrenes, hydrogenated acenaphthenes, hydrogenated naphthaeenes, hydrogenated chrysenes, hydrogenated benzophenanthrenes, hydrogenated triphenylenes, hydrogenated pyrenes and ergostanes.
Patent GB-398467-A (GB)
Title: Improvements in absorption refrigerators
IPC: F25B17/08
Filed: 1931-12-05
Abstract: 398,467. Refrigerating. FRITZ, H., 7, Abt Karlgasse, Vienna. Dec. 5, 1931, No. 33771. Void [Abridged as open to inspection under Sect. 91 of the Acts, Feb. 21, 1932]. [Class 29.] Absorption machines.-The generatorabsorber vessel A of a domestic machine working on the reversing system has perforated partitions 3 united to the wall and to a central flue 2, which may receive an electric heating element or be fitted with a spiral baffle S for diverting the heating gases of an oil &c. burner. The vessel is surrounded by a spaced insulated casing formed of a coil of asbestos covered with absorbent material 7 supported by top and bottom rings 17, 16. The top ring is formed as a channel 18 having openings 21 leading to semicircular upright tubes 22 between the vessel and casing, and during the absorption period the absorbent material of the casing is kept moist or water is poured into the channel 18, according to the desired rate of refrigeration required. The refrigerant (ammonia) evolved from solid absorbent retained between the partitions passes through a valveless pipe C to the condenser-evaporator vessel B, which comprises an inner annular vessel 8 receiving icemaking trays 14, a coil 10, and a collector vessel 12. At the beginning of the evaporation period the liquid refrigerant is forced from the bottom of the vessel 12 through the dip-pipe 11 to the coil 10 and to the vessel 8, where evaporation continues. A safety-valve 6 is fitted to the vessel 12. The apparatus may be fitted to an upright or a box-shaped cabinet, and the generator-absorber may be disposed horizontally and cooled by water sprayed from a trough. The heating may be controlled by a time-switch or by using a definite charge of liquid fuel.
Patent GB-1437140-A (GB)
Title: Clarifiers
IPC: C02F1/52
Filed: 1973-07-16
Abstract: 1437140 Clarifying water PATERSON CANDY INTERNATIONAL Ltd 15 July 1974 [16 July 1973] 33792/73 Heading C1C Water is clarified by a process using preformed floc particles to clarify the incoming water, wherein the contaminated floe is withdrawn, concentrated to a sludge which is mixed with a dosing agent to provide therein a soluble coagulant salt capable of producing more floe, allowing contact time for the dosing agent and sludge to react and feeding the reacted mixture into the incoming water. A specified dosing agent for an aluminium hydroxide floe is aluminium sulphate. An apparatus for carrying out the process is described in which the incoming water admixed with dosed floc enters at the bottom of an inverted conical tank and rises through the floc blanket therein, the clarified water being removed at the top. Means for removing floe for dosing and for discharging surplus floe are described.
Patent GB-969704-A (GB)
Title: Improvements in or relating to asynchronous electric motors
IPC: H02P25/26
Filed: 1962-09-04
Abstract: 969,704. Induction motors; control of A.C. motors. SIEMENS & HALSKE A.G. Sept. 4, 1962 [Sept. 6, 1961 (2)], No. 33797/62. Headings H2A and H2J. [Also in Division G3] An asynchronous motor of the single phase or polyphase type comprises rotor winding LW1, LW2, each of which is connected through a respective one of a pair of bridge rectifiers Gbl, Gb2, to a control element comprising a transistor, or thermionic valve. As shown, tone generator G produces a voltage having a frequency corresponding to motor speed and .is coupled through tuned circuit S to amplifier stage V and source Q which can be constituted by an auxiliary winding on rotor L or in the tone generator. When the rated speed is reached, transistor T2 conducts and transistor T1 is cut off to interrupt the rotor circuit until the speed drops to a predetermined value, whereupon the rotor circuit is reclosed. In another arrangement, the transistor T2 becomes partially conductive when the circuit S approaches resonance, the transistor T1 acting as a variable resistor in the rotor circuit. In a further embodiment, the tone generator supplies a coil associated with a mechanical oscillator which interacts with a pick-up head when the tone frequency equals the natural frequency of vibration. A winding on the head is connected to the control circuit of the transistor T2, Fig. 3 (not shown). The mechanical oscillator may be excited directly by the poles of the tone generator, Fig. 4 (not shown). The whole control unit may be arranged to rotate with the rotor.
Patent GB-342732-A (GB)
Title: Arrangement for operating wireless transmitting apparatus
IPC: H04H20/67
Filed: 1929-11-06
Abstract: 342,732. Frequency changers. LORENZ AKT.-GES., C., 1, Lorenzweg, Tempelhof, Berlin. Nov. 6,1929, No. 33842. Convention date, Nov. 17, 1928. [Class 38 (ii).] In a broadcasting or other system in which a control or fundamental frequency is transmitted from a central station to a number of transmitting stations having frequency-multipliers and working on the same wave-length, the fundamental frequency is supplied to a cascade arrangement of units, each unit comprising an amplifier, a frequency-multiplier, and a disturbance-remover. The frequency-multiplier may be a saturated-iron harmonic generator F, Fig. 2, or a valve R3, Fig. 3, having a very high negative grid bias and a tuned circuit C7, L12 connected to its anode. The disturbance-remover comprises a tuned circuit C3, L5 connected to points of pure watt voltage existing between the two series resonance circuits L6, C4, L7 and L8, C5, L9 all three circuits being tuned to the desired multiple frequency. The amplifier and frequency-multiplier, and the several parts of the disturbance-remover, are separately screened as indicated by the dot-dash lines.
Patent GB-386099-A (GB)
Title: Improvements in thermal switches
IPC: H01H61/00
Filed: 1931-12-07
Abstract: 386,099. Thermal switches. AKTIEBOLAGET BIRKA REGULATOR, 48, Surbrunnsgatan, and APPELBERG, A. O., 11, Roslagsgatan, both in Stockholm. Dec. 7, 1931, No. 33904. Drawings to Specification. [Class 38 (v).] Thermal switches have their contacts enclosed in a hermetically sealed receptacle containing gas at a pressure which is not so low as to reduce by more than one-third its conductivity and yet is low enough to prevent the occurrence of a glow discharge between the contacts. Hydrogen and other low-atomic gases of high conductivity are most suitable and it is stated that pressures as low as 2 millimetres of mercury may be used without reducing the conductivity below two-thirds of the conductivity at atmospheric pressure. The theoretical considerations determining the upper limit of pressure for a given maximum separation of the contacts and a given maximum voltage are set forth. The switch is actuated by heat applied outside the receptacle.
Patent GB-762500-A (GB)
Title: Means for driving a bottom belt conveyor
IPC: B65G15/04
Filed: 1953-12-07
Abstract: 762,500. Endless belt conveyers. EICKHOFF MASCHINENFABRIK UND EISENGIESSEREI GEB. Dec. 7, 1953 [Jan. 2, 1953; Oct. 12, 1953], No. 33969/53. Class 78 (1). In a belt conveyer for use in mines with the bottom run operative to convey the material, the driving head comprises two belt driving drums independently driven by separate motorgearbox assemblies, the two assemblies being mounted externally and projecting to opposite sides of the head. In one form, Fig. 1, belt 1 delivers over the drum 8 to transverse gallery conveyer 11 and is guided around the latter by drum 7 and rollers 10, 11, the drums 7 and 8 being separately driven by motors and gearing mounted externally of the framework in line with their respective drums and on opposite sides of the belt 1. The Fig. 4 form, for low working room has separately driven drums 12, 13 beyond the gallery conveyer 11, belt 1 delivering over guide rollers 14, 15. Drums 12, 13 are of different diameters and are driven at correspondingly different speeds.
Patent GB-859726-A (GB)
Title: Improvements in or relating to wet treatment of textile materials
IPC: D06B3/20
Filed: 1958-10-24
Abstract: <PICT:0859726/IV (c)/1> <PICT:0859726/IV (c)/2> <PICT:0859726/IV (c)/3> <PICT:0859726/IV (c)/4> A moving web or skein is bent at right angles to its length by means of a succession of short mechanical impacts imparted from one side whilst a stream of treatment liquid is directed from the other side into the part of the web or skein opened up by the bending action in a direction opposing the impact movement. The web or skein may be treated alternately from opposite sides. Suitable apparatus for effecting the above treatment comprises an impact ledge capable of oscillation and at least one tubular slit-like nozzle associated with treating liquid supply means. The treating fluid fed to the slitlike nozzle is preferably heated and under pressure.  Sonic irradiation means may be used to ensure homogeneity of treating fluid.  As shown in Fig. 1 w represents a textile web bent at right angles at a by impact ledge s.  Opposite to this inflexion point there is disposed a nozzle slot e of a pipe c from which treating liquid f is ejected.  A heating pipe d may be so mounted in pipe c that there is formed a channel-like guide for treating liquid f up to nozzle e.  The web speed and the frequency of the ledge movement may be synchronized so as to achieve the required intensity of treatment.  As shown in Fig. 4 several impact ledges s may act simultaneously on web w and the latter may be rolled up and unrolled on rollers h and g respectively.  Circulation of treating liquid f may be achieved through pipes m, q and pump n.  As shown in Fig. 6 impact ledges s may act on opposite sides of web w and Fig. 7 depicts a contra flow arrangement of treating fluid and web.
Patent GB-945855-A (GB)
Title: A process for the production of triazinylimino compounds
IPC: C07D403/12
Filed: 1959-10-08
Abstract: Tetramers of cyanogen halides of formula <PICT:0945855/C1/1> are obtained by polymerization of HalCN, where Hal is Cl or Br. Compounds of the above formula where one or more Hal is F are obtained by reacting the chloro-compound with KF.  Cyanuric acid is obtained by hydrolysing tetrameric cyanogen chloride with boiling water.ALSO:Compounds of the formula: <FORM:0945855/C2/1> (where R1 is an amino group which may be substituted by one or two organic radicals, or an organic radical bound by way of O or S, and R2, R3 and R4 are each halogen or a group as defined for R1, or in which R1 and R2 together with the adjacent carbon atom represent a heterocyclic ring in which both atoms adjacent to this carbon atom are hetero-atoms) are prepared by reacting, in the presence of a solvent, a compound: <FORM:0945855/C2/2> (where Hal is a halogen atom) with ammonia or a compound RXH, where R is an organic radical and X is O, S, NH or a NH group, or successively with two or more such reactants, preferably in the presence of an acid-binding reagent.  Examples and a list of suitable compounds RXH are given. 2-Amino-4,6-dichloro-s-triazine is obtained by hydrolysis in water at 20 DEG C. of tetrameric cyanogen chloride.  The products of the invention are of use as agricultural chemicals and as intermediates for dyestuffs, medicaments and textile auxiliary products.ALSO:Dyestuffs are obtained by diazotizing the compound <FORM:0945855/C3/1> and coupling with coupling compounds.  The Provisional Specification refers to the coupling of diazonium compounds with N1-methyl - N1 - phenyl - N2 - {3 - (5 - hydroxy - 7 - sulphonaphth - 2 - ylaminocarbonyl) phenyl}-N3-(dichlorotriazinyl) guanidine.
Patent GB-1375476-A (GB)
IPC: B01D53/34
Filed: 1972-07-21
Abstract: 1375476 Dry - scrubbing fluoride fumes ARDAL OG SUNNDAL VERK AS 21 July 1972 [22 July 1971] 34143/72 Headings B1L and BIT [Also in Division Cl] Flouride- and sulphur-containing fumes from aluminium electrolytic cells are filtered and dry-scrubbed for selective removal of fluoride. Alumina is added to the fumes for reaction with fluorides present and is then removed by filtration in one or more filter units, the alumina being added not more than one metre upstream of the filter units or in each filter unit itself such as to give a contact time which means that fluoride is selectively absorbed. The alumina used contains a low content of alpha crystals and is reactive to fluoride. In the embodiment of Fig. 2 a number of bag filters 7 are mounted in a housing with fumes inlet 6 and filter fumes outlet 10. Alumina is dispensed from tubes 8 and falls in counter-current to the fumes. An outlet 9 is provided for the alumina.